The relationship between the accuracy of the load cell and the angular difference and the solution

We know that a load cell is actually a sensing device that converts a
quality signal into a measurable electrical signal output. The load cell is
divided into 8 types according to the conversion method, and is most widely used
in the resistance strain type. For load cells, the most important thing is
whether the accuracy is reliable. Therefore, the angular difference must not
occur. So what is the phenomenon of angular difference? In the face of this
problem and the emergence of phenomena, how should we solve it? Let us discuss
the matter with you.

Load a certain weight on the weighing platform at a different position, as
long as the absolute value of the difference is greater than or equal to a
division value, we think that the scale has a angular difference. If there is an
angular difference, this directly affects the accuracy of the load cell, but the
influence of the angular difference on the accuracy of the weighing has a
certain concealment, which is difficult for non-professionals to find. The
user's symmetrical heavy test is often tested in the middle of the scale body.
In the middle, it is considered that the whole scale is accurate, and it is easy
to ignore the angular difference, so that the error caused when the weight is
not in the middle of the scale body is difficult to find at that time.

The so-called angular difference is mainly due to the fact that the sensor
is not ideal when the sensor is shipped from the factory. In addition, the
environmental factors in the field use and the limitations of the installation
means bring imbalance problems to multiple sensors in parallel. In order to
solve the above problems, the junction box must be selected to adjust the
sensitivity of the sensor and the output impedance of the sensor to be close to
each other, thereby ensuring the balance of the entire scale body.